ecobee is fantastic. their website has demos if you haven't seen them yet

Here is a link that might be useful: ecobee website

Ecobee - go with the non-touchscreen and save money since you'll typically control it via a 'SmartDevice' - the Portal is unbelievably simple and very informative. Venstar was represented by a Company in Florida that seems to have folded , with multiple locations closing throughout the area.